body {
  margin: 0;
  padding: 0;
}

header {
  font-size: 50px;
  font-weight: 700;
  font-family: "Courier New", Courier, monospace;
  width: 80%;
  margin: 0 auto;
}
hr {
  height: 5px;
  background-color: black;
}
nav {
  width: 80%;
  margin: 10px auto;
  margin-bottom: -10px;
}
h1 {
}
main {
  width: 80%;
  margin: 0 auto;
}

.text-align {
  text-align: center;
}

.margin-left {
  margin-left: -38px;
}
